WASHINGTON — Honeywell and Opower have announced plans to jointly develop energy management tools to help consumers cut their energy use and expenses. According to the companies, they will combine Honeywell’s expertise in residential automation and control systems with Opower’s energy data analytics and customer engagement techniques to create cost-effective technology that will provide energy savings in the home and across the electrical grid.

Honeywell and Opower will initially launch a platform that includes a Web-connected programmable thermostat to help utilities boost energy efficiency programs, and drive deeper energy savings in the home. The technology will measure, analyze, and report homeowners’ electricity use, including detailed information from the thermostat, which controls the heating and cooling system — equipment that accounts for almost 50 percent of all residential energy consumption, noted the companies.

Consumers will be able to access the data from a Web portal or mobile application to give them a clear and comprehensive snapshot of their energy use and spending, the companies said. The technology will also suggest and automatically implement cost-saving changes, and will present equivalent data from similar families in the same geography to provide a benchmark and additional context.

“Empowering consumers to adjust how they use electricity starts with awareness,” said Jeremy Eaton, vice president of energy solutions for Honeywell. “But it doesn’t end there — they also need easy-to-use controls to implement changes and make them stick. We believe Honeywell and Opower will successfully combine information, motivation, and control to help homeowners reduce energy consumption and costs.”

The companies plan to pilot the new product with select utility partners over the next few months. The platform may eventually support utilities’ efficiency programs for light commercial customers, as well as demand response programs, which help temporarily reduce electricity consumption when energy use spikes and strains the grid. Honeywell also plans to sell similar products through residential contractors and retailers.

“Honeywell is the clear leader in manufacturing reliable control technology and it’s a brand trusted by millions all across the world” said Daniel Yates, CEO and co-founder of Opower. “We are very excited to work with Honeywell to help us extend our platform into the home, and deliver even more value to our utility partners and their customers.”